Propane (100 kglh) is completely combusted in air in a furnace. Apart from the combustion products, 20 kglh oxygen leave the furnace. (a) Draw a complete, fully labelled, and detailed ?ow-chart of the process (b) Write a completely balanced equation for the complete combustion. (c) Calculate the theoretical oxygen for the process. (d) Calculate the theoretical air for the process. (9) Calculate the percent excess air (or oxygen). (f) What would be the wet gas composition of the output stream? (9) What would be the ORSAT analysis of the output stream? [16] Question 3 650 kglh of heptane is completely combusted to give 002. 50% of the 002 is converted to dry ice. How many kg dry ice are made per hour? [8]

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